Comments on: Make your own Photo Emulsion

By: Petra

Petra — Thu, 10 Jun 2010 20:38:19 +0000

Hi… the link to the Instructable is in my post there… but this is it http://www.instructables.com/id/STFL74AFL2BQOP6/

fyi the recipe I’ve come to use is:

1 & 1/2 tsp Potassium Dichromate
1/4 c water

mix together till crystals dissolve in water (do this in a very dim lit room)

and add 1 & 1/4 cups of glue and mix well

exposure time with 150 watt bulb 20″ above is about 30 min for 14″x17″ screen

good luck and let me know how it goes!

By: Niecey

Niecey — Thu, 10 Jun 2010 20:07:25 +0000

How do you get to the actual tutorial…..?

By: Terry

Terry — Thu, 17 Sep 2009 15:40:25 +0000

This stuff is commonly used for Gum Bichromate printing, a photographic process passed down by the ancients. It’s known to be pretty fussy, but the effect is just gorgeous. Take a look for yourself.
http://www.alternativephotography.com/gall_gumbichromates.html